A new light on your dashboard? You don’t figure out why it doesn’t switch off… It’s normal, an automobile is elaborate and there are various factors why a light may occur. If your glow plug light comes on while driving your Ram ProMaster, it may signify several problems. In the following paragraphs, we will do everything we can to help you see things more clearly. First, we will discover how the preheating light on your Ram ProMaster works, and then the different reasons it lights up when you are driving

glow-plug-light-ram-promaster

What is the purpose of my Ram ProMaster glow plug light?

The main role of the engine glow plug light, which is generally symbolized by a yellow coil, is to guarantee that your glow plugs are working correctly. In reality, it must light up when you switch on your Ram ProMaster to tell you that they are heating the intake air in your cylinders and must go out after a few moments when the engine is running. This preheat light is therefore not supposed to stay or come on while driving with your automobile. But, if it turns on while driving, it may suggest multiple failures, we will try to summarize the main ones.

What to do if the glow plug light comes on while driving on my Ram ProMaster?

A glow light that comes on while driving on your Ram ProMaster or at any other time other than when the engine is started is meant to inform you to a problem other than your spark plugs, we will take a look at this right now. No matter the reason, a switch to the diagnostic tool will allow you to precisely translate the motive for the light up of your glow light.

My Ram ProMaster glow light comes on and I’m experiencing a loss of power

The first probability is that you recognize that your glow plug light comes on while driving your Ram ProMaster and that you also experience a loss of power. In such a case, several trouble can demonstrate its lightning. Here is a list of the main factors:

  • Trouble of EGR valve, in fact, if you are affected a loss of power, it is possible that your EGR valve is blocked, in such a case, it is expected that your preheat light comes on while driving on Ram ProMaster because it is one of the failures of which it is expected to notify you. Have the status of your valve inspected
  • Issue linked to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can lead to turbo boost and a disturbance in the operation of the turbo.
  • Issue in connection with the injection, either an injector that has seized up or the injection pump that is destroyed by filings or other possible foreign bodies that disrupt its proper operation.
  • Finally, the last problem that could lead to a glow indicator light on your Ram ProMaster coupled with a loss of power, is that your fuel filter is too dirty, you should get jerks because of a bad fuel flow in the engine.

My glow plug light comes on or is flashing but no difference on the performance of my Ram ProMaster

To conclude, we’ll give you the reasons for a glow plug light that comes on on your Ram ProMaster without you feeling any difference in power or automobile behaviour. Ordinarily, this is an electronic problem:

  • Glow plug relays or fuses to be swapped out, test and replace if necessary.
  • A contactor/potentiometer on one of your pedals (brake, accelerator or clutch) has failed, often a simple de-seizure will be enough to solve the problem.
  • You have a false contact somewhere in your electrical circuit, test out the other alternatives first because it is not easy to find it alone, we advise you to go to your auto mechanic.
  • Faulty injection pressure sensor, ECU error
  • If you want more tutorials on the Ram ProMaster, go to our Ram ProMaster category.